nvme_get_log_page(2)

πŸ’– nvme_get_log_page β€” bestie edition πŸ’–

okay so this is a page from the libnvme API manual, section 2, and it's all about nvme_get_log_page. no cap, it's a lil function that goes and grabs you some log page data off your NVMe device. it's giving "let me pull up the receipts" energy fr fr πŸŽ€


✨ NAME ✨

nvme_get_log_page β€” Get log page data πŸ¦‹

like... literally. that's the whole job. it fetches log page data. iconic behavior honestly πŸ‘‘


🌸 SYNOPSIS 🌸

int nvme_get_log_page (int fd , __u32 xfer_len , struct
       nvme_get_log_args *args );

yes bestie, it returns an int, it takes an fd, an xfer_len, and a pointer to your args struct. that's the vibe. πŸ’…


πŸ’œ ARGUMENTS πŸ’œ

  • fd β€” the file descriptor of the nvme device. your lil doorway into the device, you gotta hand it over so it knows who it's talking to πŸ”₯
  • xfer_len β€” the max log transfer size per request, which it uses to split the total. so if your log is huge, this is the chunk-size situation β€” it slices the whole transfer up into requests this big. very "eat the elephant one bite at a time" of it πŸ“
  • args β€” a struct nvme_get_log_args argument structure. all the actual details of what you want live in here, this is just the pointer to it 🧚

⭐ RETURN ⭐

so here's what you get back:

  • the nvme command status if a response was received β€” peep enum nvme_status_field for what those statuses actually mean πŸ‘€
  • or -1 with errno set, if it didn't get a response. that's the "we didn't get a reply bestie, check errno" path 😭
ngl if you see -1, don't panic β€” just go check errno, it's literally telling you what happened. the flag is right there πŸ’€

and that's the whole page, periodt πŸ’–βœ¨πŸ¦‹πŸŒΈπŸŽ€

this lil writeup came from the libnvme API manual, version/page dated July 2026, and the page itself is nvme_get_log_page(2). mwah, go forth and read those logs πŸ«ΆπŸ‘‘

πŸ“¦ where this page comes from